外文翻译高速切削加工在模具制造中的新应用.docx

外文翻译高速切削加工在模具制造中的新应用.docx

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外文翻译高速切削加工在模具制造中的新应用

翻译部分

英文原文

High-speedcuttingprocessinginmoldmanufactureapplication

A.J.G.Nuttall*,G.Lodewijks

AbstractThecurrentmoldapplicationiswidespread,alsohadtheverybigdevelopmentwithitrelateddiemakingtechnology.Atpresent,usedthehigh-speedcuttingproductionmoldalreadytobecomethediemakingthegeneraltrend.InsomemoldManufacturer,thehighspeedenginebedbigareasubstitutionelectricaldischargemachine,thehigh-speedcuttingproductionmoldalreadygraduallybecamethediemakingthegeneraltrend.Itcanimprovemold'ssize,theshapeandthesurfaceroughness,reducesevenomitsthemanualsharpening,thusreducesproductioncostandthereductionmanufacturingcycle.Thisarticlethroughtothetraditionalmoldprocessingcraftandthehighspeedmoldprocessingcraft'scontrast,elaboratedthehigh-speedcuttingprocessingsuperiority.Inthearticlealsobrieflyintroducedthehigh-speedcuttingprocessingintheprocessingcraftaspectkeytechnologies.

KeywordsHigh-speedcuttingGrindingtoolGrindingtoolprocessingProcesstechnology

1Introduction

1.1Introduction

Alongwiththeadvanceintechnologyandtheindustryswiftdevelopment,themoldalreadybecameintheindustrialproductiontousetheextremelywidespreadmaincrafttoequipnow.Themoldtakestheimportantcraftequipment,inIndustrysectorsandsoonconsumable,electricapplianceelectron,automobile,airplanemanufactureholdsthepivotalstatus.Themanufacturedproductscomponentsroughmachining75%,theprecisionwork50%andtheplasticparts90%willcompletebythemold.AtpresenttheChinesemoldmarketdemandhasreached50,000,000,000Yuanscales,ourcountrydiemakingmarketpotentialishuge.Themoldisonekindofspecial-purposetool,usesinforming（）eachmetalorthenonmetallicmaterialneedsthecomponentstheshapeproduct,thiskindofspecial-purposetoolgeneraldesignationmold.Themoldisintheindustrialproductionthemostfoundationequipment,isrealizesthefewcuttingsandthenon-cuttingessentialtool.Themoldhaswidelyusedintheindustrialproductioneachdomain,liketheautomobile,themotorcycle,thedomesticelectricappliances,theinstrument,themeasuringappliance,theelectronandsoon,inthem60%~80%componentsneedthemoldtocarryonthemanufacture;Thehighlyeffectiveproductioninenormousquantities's,bolt,nutandgasketstandardlettersandsoonplasticalsoneedthemoldtoproduce;Theengineeringplastics,thepowdermetallurgy,therubber,thealloycompressioncasting,theglassformationandsoonneedtousethemoldtotakeshape.

1.2High-speedcuttingprocesstechnology

Asthenamesuggests,thehigh-speedcutting,firstisthehighspeed,namelymusthavethehighspindlespeed,forinstance12000r/min,18000r/min,30000r/min,40000r/min,evenalsohadahigherrotationalspeedstillintheexperiment;Ontheotherhand,shouldalsohavethebiggertofeedquantity,like30000mm/min,40000mm/min,even60000mm/min;Hasisafteragaintherapidtraverse,tradesfasttheknife,themainaxletradetheknife,fromthestaticstatearrivesitsneedsrotationalspeedrisetimeandsoon,onlythenachievedtheabovestandardstobeabletocallithighspeed.

Nextismustaimatthedifferentprocessingobject,thedifferentdegreeofhardness,thedifferentmaterialquality,thedifferentshapetochoosethecorrespondingreasonableparameter,butcannotpursueconstantlytobehighspeedandbehighspeed,regardingthediespaceprocessing,theshapeisspeciallycomplex,butthecuttingtooldiameterisalsosmalltime,becausecuttingtool'spathisnotthesimpletranslation,butisthecurve,evenhasrightanglecornertime,technologicalparameterrationalespeciallyimportant,ifbecausewantstomaintaintheidenticalfeedratecarriesontheorthogonalcutting,willnotbeabletodowellwillcauseasaresultoftheenginebedmovingpart'shugeinertiathecuttingtoolwillmakewhenthebendanglemovementtobreaksuddenly,butthevariablemotioncan,becauseMovementsandsoonaccelerationanddecelerationcreatethethicknessofcuttingtheinstantaneouschange,butcausesthecutterchangetoenabletheworkpiecesurfacetohavecuts,fromthiscausestheprocessingdropinquality,therefore,inviewofthedifferentprocessingobject,needstheprogrammerstochoosethereasonablecuttingtoolpath,optimizedcuttingparameter;Ontheotherhand,accordingtoneedstochoosethesuitablecuttingvelocity,onlythencandisplaythehigh-speedcuttingtrulylikethestrongpoint.

Thehigh-speedcutting（HSC）isanadvancedtechniqueofmanufacturewhichforthepasttenyearsrapidlyrises.Becausethehigh-speedcuttingtechnologyhasthecuttingefficiencytobehigh,theprocessingqualityhigh,canprocessthehardsteelstockandthegoodefficiencydirectly,causesprofessionandsoonaviation,mold,automobile,lightindustryandinformationproductionefficienciesandthemanufacturequalityobviouslyenhances,andcausestheprocessingcraftandtheequipmentcorrespondingrenewal.Thereforeissimilartothenumericalcontroltechnologyisthesame,thehigh-speedcuttingandthehighspeedprocessinghavebecomeinthe21stcenturyamachine-buildingindustryinfluenceprofoundtechnologicalrevolution.Atpresent,adaptstheHSCrequesthighspeedmachiningcenterandotherhighspeednumerically-controlledmachinetoolhasassumedthepopularizationtendencyinthedevelopedcountry,ourcountryrecentlyisalsospeedingupthedevelopment.

Thehigh-speedcuttingprocessingisfacesforthe21stcenturyahightechnologyandnewtechnology,itisonekindisdifferentwiththetraditionalprocessingprocessingway.Compareswithit,thehigh-speedcuttingprocessingmainaxlerotationalspeedhigh,cutshighforthespeed,thecuttingquantityissmall,butintheunittimematerialexcisesthequantitytoincrease3~6timesactually.Ittakethehighefficiency,thehighaccuracyandthehighsurfacequalityasthebasiccharacteristic,inprofessionandsooninautomobileindustry,aerospace,moldmanufactureandinstrumentmeasuringappliancehasobtainedtheincreasinglywidespreadapplication,andhasobtainedthesignificanttechnologyeconomicefficiency,isthecontemporaryadvancedmanufacturetechnologyimportantconstituent.

Whenwithtraditionalwayprocessingmold,oftenusestheelectricsparkmachining,buttheelectrodedesignandmakesitselfisthetechnologicalprocesswhichtime-consumingtakesthetrouble.Butafterusesthehigh-speedcuttingprocessing,becausethenarrowandsmallregionprocessingrealizationandthehighgradesuperficialresult,lettheelectrodetheutilizationratioreducegreatly.Moreover,makestheelectrodewiththehighspeedmillalsotobepossibletomaketheproductionefficiencytoenhancetoanewscale.

Themajorpartmoldmayusethehigh-speedcuttingtechnologytoprocess,liketheforgingdie,thecompressioncastingmold,castwiththeblowmoldingmoldandsoon.Hammersthecavitybodyshallowly,thecuttingtoollifeislong;Compressioncastingmoldsizemoderate,theproductivityishigh;Castswiththeblowmoldingmoldgeneralsizesmall,quiteiseconomical.

2thehigh-speedcuttingprocessingmoldrelativetraditionprocessesthemoldthesuperiority

2.1Enhancestheproductivity

Inthehigh-speedcuttingthemainaxlerotationalspeedandentersforthespeedenhancement,mayenhancematerialremovingrate.Atthesametime,thehigh-speedcuttingmayprocessthehardcomponents,amanyCmmponentsattipeclampsmaycompletethick,halfessenceandtheprecisionworkandsoonthecompleteworkingprocedure,alsomaymeetthecomponentssurfacequalityrequirementsdirectlytothecomplexprofileprocessing,therefore,thehigh-speedcuttingcraftoftenmaysavetheelectricsparkMachining,manuallyrubrepairsandsoontheworkingprocedure,reducesthecraftroute,thenenhancestheprocessingproductivitygreatly.

Thehigh-speedcuttingprocessingpermissionusebigtofeedrate,enhances5~10timescomparedtotheconventionmachining,theunitinterval/unittimematerialexcisionratemayenhance3~6times,theprocessperiodmayreducegreatly.Thismayuseinprocessingneedstoexcisethemetalmassivelythecomponents,speciallyhastheveryvitalsignificanceregardingtheaviationindustry.

2.2Improvementprocessingprecishonandsurfacequalhty

Thehighrpeedenginebedmusthavehighperformanceandsoonrigidityandhighaccuracy,atthesametimebecausecuttingforcelow,theworkpiecethermaldeformationreduces,thecuttingtooldistortsslightly,thehigh-speedcuttingprocessingprecisionIsveryhigh.Depthofcutsmall,butentersforthespeedquickly,theprocessingsurfaceroughnessisverysmall,cutswhenthealuminumalloymayreachRa0.4~0.6,whencuttingsteelstockmayreachRa0.2~0.4.

Compareswiththeconventionalcutting,whenhigh-speedcuttingprocessingthecuttingforcemayreduce30%atleast,thismayreducetheprocessingregardingtheprocessingrigiditybadcomponentstodistort,causessomethinwallclassfineworkpiecethemachiningintopossible.Becauserevolveshighspeedtimethecuttingtoolcutstheexcitationfrequencyisfarawayfromthecraftsystem'sforcedoscillation,hasguaranteedthegoodprocessingcondition.Becausethecuttingforceistoosmall,cutthehotinfluencetobesmall,causesthecuttingtool,theworkpiecedistortiontobesmall,maintainedthesizeaccuracy,moreoveralsocausedthefrictionbetweenthecuttingtoolworkpiecechangesissmall,thecuttingdestructionlevelthinned,theresidualstresswassmall,hasrealizedthehighaccuracy,thelowroughne